Home / 1,787,368.80-2,680,210.80-649,328.40

Finding the Fourth Proportional to 1,787,368.80, 2,680,210.80 and 649,328.40

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Solution

The fourth proportional to 1,787,368.80, 2,680,210.80 and 649,328.40 is: 973,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,368.80 : 2,680,210.80 = 649,328.40 : x
  2. Step 2: Convert to fraction form
    1,787,368.80/2,680,210.80 = 649,328.40/x
  3. Step 3: Cross multiply
    1,787,368.80x = 2,680,210.80 × 649,328.40
  4. Step 4: Simplify right side
    1,787,368.80x = 1,740,336,990,426.72
  5. Step 5: Solve for x
    x = 1,740,336,990,426.72/1,787,368.80
  6. Step 6: Final answer
    x = 973,686.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.